Can anxiety cause a rapid heartbeat?

Anxiety disorder may cause a rapid heartbeat. The main features of anxiety disorder include worry, stress, uneasiness, and anticipatory anxiety. During an acute anxiety attack, one may experience a sense of impending doom, going crazy, or losing control. When feeling tense, it's important to calm your emotions. If you experience a fast heart rate, it is recommended to go to the hospital for an electrocardiogram (ECG) to assess your physical condition.